Ceramic foams, methods of making same, and uses thereof
AssigneeThe Research Foundation for The State University of New York
InventorsShenqiang REN, Ruizhe YANG, Bingbo CHAI, Feng HU
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Abstract
Provided are ceramic foams. The ceramic foams may have a hierarchical pore gradient. The ceramic foams may be silica aerogels. The ceramic foams may be made by reaction of one or more precursors in the presence of an inert gas generated by a pore-forming gas-forming additive. The ceramic foams may be used as insulating materials.
Claims54
A method for forming a ceramic foam comprising:
- contacting in a sealed environment
- one or more ceramic precursor(s);
- one or more a pore-forming gas-forming additive(s);
- one or more catalyst(s);
- and
- optionally, one or more additive(s),
- wherein the contacting is results in formation of an inert gas and a ceramic foam is formed.
A ceramic foam comprising pores and a hierarchical pore gradient, wherein at least a portion or all of the pores may be interconnected.
A ceramic foam impregnated substrate, where the impregnated substrates have a porosity of greater than 100 nm.
A ceramic foam impregnated substrate, wherein the impregnated substrate has a conductivity of 0.017 W/mK or less.
Dependencies are inferred from the claim text.